(1) .Glitch

　　In electrical steel blanking, burrs are inevitable. But changing the stamping conditions of the sheet metal parts can reduce the burr.

　　Cause ①: The cutting edge is worn.

　　Countermeasure: Sharpen the cutting edge to make it sharp.

　　Cause ②: The gap is too large or the effect is not obvious after sharpening.

　　Countermeasure: Change the design size of the convex die, or replace it with new spare parts.

　　Reason ③: There are many bright bands of punching, and the gap is too small.

　　Handling countermeasures: Increase punching clearance by grinding and other methods. (The repairs must be confirmed according to the product drawing

　　The full male dies or female die).

　　Cause ④: The blade is broken.

　　Handling countermeasures: Replace with new spare parts or re-sharpen after padding.

　　Cause ⑤: The parallelism between the punch is poor.

　　Countermeasures: Repair the punch and adjust the parallelism of the punch.

　　Cause ⑥: After the mold is installed, the upper and lower positions are misaligned.

　　Countermeasure: Replace the guidance system. (Note: Paper can be cut for inspection on the punch.)